@startuml
sprite $nature [48x48/16] {
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}


!define MATERIAL_NATURE(_alias) ENTITY(rectangle,black,nature,_alias,MATERIAL NATURE)
!define MATERIAL_NATURE(_alias, _label) ENTITY(rectangle,black,nature,_label, _alias,MATERIAL NATURE)
!define MATERIAL_NATURE(_alias, _label, _shape) ENTITY(_shape,black,nature,_label, _alias,MATERIAL NATURE)
!define MATERIAL_NATURE(_alias, _label, _shape, _color) ENTITY(_shape,_color,nature,_label, _alias,MATERIAL NATURE)
skinparam folderBackgroundColor<<MATERIAL NATURE>> White
@enduml